Hesketh Out Marsh East Managed Realignment

Transcription

1 Hesketh Out Marsh East Managed Realignment Presentation for by Richard A Shirres (Environment Agency) 29 th April 2015

2 HOME: location Hesketh Out Marsh East Managed Realignment Partnership Scheme

3 HOME: historical land reclamation

4 HOME Designations Hesketh Out Marsh East Managed Realignment Partnership Scheme

5 Hesketh Out Marsh West in 2007

6 Hesketh Out Marsh East in 2012

7 HOME: conceptual design in 2013

8 HOME: Flood risk historical & modelled

9 HOME Phase 1 Works Extensive refurbishment of EA flood defence embankment

10 HOME: risk of bird strike Key species of concern: Nesting gulls Soaring gulls Geese

11 HOME: Bird Control Management Plan

12 HOME: risk of bird strike Key concern: Pink-footed goose Declining due to loss of arable & short grass 500 out of 40-80k

13 HOME: Bird Control Management Plan Key positive factors: Flight paths Experience at HOMW No gulls Few geese Management regime aimed at nesting redshank Proposed management controls Monitoring

14 HOME: Bird Control Management Plan

15 HOME: Canal & River Trust

16 HOME: Canal & River Trust Canal & Rivers Trust: Environmental monitoring obligation

17 HOME

18 HOME: Importance of tidal gauge records

19 HOME: Guide Road bank crossing point

20 HOME: Environmental Benefits Biodiversity & Habitat Water Framework Directive & Water Quality Sustainable Shoreline Management & Flood Defence River Estuary Morphology & Landscape Amenity Climate Change Adaptation & Mitigation

21 HOME: ecosystem services for intertidal habitat Supporting Services Soil formation Primary production Nutrient cycling Provisioning Services Ecosystem goods primary production fibre & construction products food & drink products medicinal & cosmetic products ornamental products renewable energy source Biochemical services Regulating Services Climate regulation - Carbon sequestration - local climate Water regulation (Flood risk mitigation) Water quality (purification) - filtration of water - detoxification of water & sediment Erosion regulation Cultural Services Recreation & tourism Aesthetic Education Cultural heritage

22 HOMW: ecosystem services for intertidal habitat

23 HOME: Environmental Benefits Headlines Creation of 154ha BAP priority habitat Refurbished coastal flood defence & improve SoP 9,721k of economic benefits 143 properties protected from flooding Saltmarsh will lock in nitrogen and phosphates from land use diffuse pollution Improvement in river morphology Creation of a recreational amenity Material won from site = reducing carbon footprint Carbon sequestration within saltmarsh

24 HOME : Phase I works begin July 2014 to October 2014 Extensive refurbishment of EA flood defence embankment Sourcing material from within the site

25 HOME Phase 1 Works Hesketh Out Marsh East Managed Realignment Partnership Scheme

26 HOME: Programme Outline 2012 to 2015 Project approval October 2012 Scoping report to key stakeholders April 2013 Engagement with key stakeholders Summer/Winter 2013 Planning application submission September 2013 Planning Committee Dec. 2013/ Feb Planning approval & resolution of conditions Feb-Apr 2014 Contractor appointed May 2014 Construction Phase I works starts on site July 2014 Suspension of Phase I works October 2014 Resumption of Phase I works April 2015

27 HOME Phase 1 Works: LiDAR November 2014

28 HOME : Getting Recognition North West Awards for Coastal Excellence 2014 Winner of Coastal Best Practice Adaptation to Climate Change

29 HOME: Programme Outline 2015 to 2017

30 HOME: Programme Outline 2015 to 2017 Produce Phase 2 & 3 Design by June 2015 Completion works for Phase 1 works by June 2015 Phase 2 works to start on site before end of June 2015 Complete Phase 2 works by October 2015 RSPB submission of HLF bid by May 2015 Finalise Phase 3 works design over winter 2015/16 Finalise environmental monitoring plan by April 2016 Phase 3 works Spring/Summer 2016 RSPB acquisition of final land tranche by October 2016 Breaching either Autumn 2016 or Spring 2017

31 HOME : Indicative costs 500k Exploitation rights from RSPB 100k Consultancy design & services up to Phase 1 30k Phase 1 Ground investigation 750k Phase 1 Construction 40k Phase II Ecological services 110k Phase II & III Consultancy design & services 125k Phase II Construction & GI 40k Phase III Construction 180k EA staff Approx 12,500 per hectare of saltmarsh

32 Climate Change Adaptation in the North West In 2013 the Adaptation Sub-Committee reported [for England & Wales]: The rate of managed realignment would have to increase five-fold, from the current levels of around 6 km of coastline realigned every year, to around 30 km. IF the 2030 goal stated in the Shoreline Management Plans is to be met. For the North West the proposed length of coast currently planned for managed realignment in the first epoch of Shoreline Management Plans (ie. to 2030) is 124 km, out of total 795 km of coastline. This target for the North West by 2030, forms 16% of the total target for England & Wales. The report s policy advice to Government is that it should consider: Requiring that local authorities and the Environment Agency develop clearer implementation programmes in line with the preferred options set out in the Shoreline Management Plans. HOME IS THE ONLY MANAGED REALIGNMENT BEING PROGRESSED

33 HOME Contacts Richard Shirres (Environment Agency) Tony Baker (RSPB)

34 Are we planning for plausible sea level rise? The IPCC has increased its projections by about 60% since its last report of In expert circles* the IPCC reports are widely considered to be conservative. * Horton, Ramstorf, Engelhart & Kemp (2014) Expert assessment of sea-level rise by AD 2100 and AD 2300, Quaternary Science Reviews, Vol 84, January 2014, p1-6